DataSource< MapS > Struct Template Reference

#include "lib/text-template.hpp"

Description

template<>
struct text_template::DataSource< MapS >

Data-binding for a Map-of-strings.

Simple keys are retrieved by direct lookup. For the representation of nested data sequences, the following conventions apply

• the data sequence itself is represented by an index-key
• the value associated to this index-key is a CSV sequence
• each element in this sequence defines a key prefix
• nested keys are then defined as <index-key>.<elm-key>.<key>
• when key decoration is enabled for a nested data source, each lookup for a given key is first tried with the prefix, then as-is. Consequently, all data in the sequence must be present in the original map, stored under the decorated keys.

  Note

  multiply nested sequences are not supported. While it is possible to have nested loops, the resulting sets of keys must be disjoint and data must be present in the base map.

  See also

  TextTemplate_test::verify_Map_binding()

Definition at line 654 of file text-template.hpp.

Public Types
using	Iter = decltype(iterNestedKeys("",""))
using	Value = std::string_view

Public Member Functions
	DataSource (MapS const &map)
bool	contains (string key)
Iter	getSequence (string key)
bool	isSubScope ()
DataSource	openContext (Iter &iter)
Value	retrieveContent (string key)

Public Attributes
MapS const *	data_ {nullptr}
string	keyPrefix_ {}

Inheritance diagram for DataSource< MapS >:

Collaboration diagram for DataSource< MapS >:

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The documentation for this struct was generated from the following file:

• text-template.hpp